A calmer way to get things done

Practical tools, fast and convenient.

Zituo Tools brings everyday file, image, text, developer, date and productivity utilities into one fast, private and multilingual website.

3131 focused tools

TOOL GALLERY

Tools ready to use

Each tool has one job, opens instantly and works on desktop or mobile.

31 tools

Calendar

Free Chinese Lunar Calendar

Free: Browse Gregorian and lunar dates, zodiac signs, daily auspiciousness, festivals and official holiday adjustments without page reloads.

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Zodiac

Free Zodiac Sign & Daily Horoscope

Free: Calculate Sun, Moon and rising signs, a daily ascendant timeline and entertainment horoscope from date, time and place.

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Developer

Free Unix Timestamp Converter

Free: Follow the current Unix time and convert timestamps to dates—or dates back to seconds and milliseconds.

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Private

Free Image Compressor & Converter

Free: Compress, resize and convert JPEG, PNG or WebP images, then download files or a ZIP.

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Video

Free Video Compressor

Free: Compress video locally with WebCodecs, resize it, change frame rate or remove audio without uploading.

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Audio

Free Audio Processing Master

Free: Convert and trim audio, extract audio from video, and follow playback on an interactive waveform locally.

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Image

Free Image Cropper

Free: Crop rectangular or circular images with exact ratios, sizes, rounded corners and transparent export.

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Batch

Free Image Watermark

Free: Place multiple text and logo watermarks on one image or a batch, then export files individually or as a ZIP.

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Free

Free Online EXIF Viewer & Metadata Remover

Free tool to view camera, date and GPS EXIF data, then remove it from one or many photos without uploads or pixel re-encoding.

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PDF

Free Merge PDF

Free: Combine multiple PDF files in your chosen order, entirely in the browser.

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PDF

Free Split & Extract PDF

Free: Extract selected page ranges or export every PDF page as a separate file.

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PDF

Free Images to PDF

Free: Turn JPEG, PNG and WebP images into one ordered PDF with page-size options.

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Private

Free PDF ↔ Word Converter

Free: Convert PDF to editable or appearance-preserving DOCX, and turn DOCX files into PDF entirely in your browser.

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Free QR Code Generator & Reader

Free: Create downloadable QR codes or read a QR code from an image.

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Text

Free Text Diff

Free: Compare two texts line by line and highlight additions and removals.

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Developer

Free JSON Formatter

Free: Format, validate, minify and sort JSON data in your browser.

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Data

Free CSV / JSON Converter

Free: Convert CSV tables to JSON and JSON arrays back to CSV.

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Text

Free Word Counter

Free: Count characters, words, lines, sentences, bytes and reading time.

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Text

Free Text Deduplicator

Free: Remove duplicate lines while preserving the original order.

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Productivity

Free Online Notepad

Free: Autosave multiple notes, search and export without signing up.

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Developer

Free URL / Base64 Codec

Free: Encode and decode URLs or UTF-8 Base64 text locally.

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Security

Free File Hash

Free: Calculate SHA-256, SHA-384 and SHA-512 checksums for files.

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Security

Free Password Generator

Free: Create strong random passwords with configurable character sets.

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Writing

Free Markdown Preview

Free: Preview polished Markdown with code highlighting and export it as a styled PDF.

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Date

Free Date Calculator

Free: Find the difference between dates or add and subtract time.

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Everyday

Free Unit Converter

Free: Convert length, mass, temperature, area, volume, speed and data.

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Developer

Free Number Base Converter

Free: Convert binary, octal, decimal and hexadecimal integers with step-by-step working.

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Focus

Free Pomodoro Timer

Free: Run automatic focus-and-break cycles with custom durations, ambient noise and local session counts.

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Developer

Free Code Screenshot Generator

Free: Turn highlighted code into polished PNG images with editor themes, window styles and precise typography.

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Developer

Free JSON to Code Generator

Free: Turn JSON into typed models for Go, TypeScript, Java, Rust, Swift, Python and more.

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Marketing

Free UTM Builder

Free: Build campaign links with UTM parameters for Google, Meta, email and other channels, then copy them for ads and analytics.

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HOW IT WORKS

Built for the task in front of you

Private by design

PDF, image, QR and text processing happens on your device. Files are not uploaded to our server.

Fast by default

No heavy framework, no ads and no unnecessary requests between you and the result.

Clear and dependable

Readable inputs, explicit units and practical explanations help prevent avoidable mistakes.